We probably agree on a lot of issues but I think you got this wrong. The anologies doesn't align. Marriage is different in some major ways and I think they are significant enough that you would be better off using another analogy - like the feeding of illegals with our tax dollars or the Welfare state in general. Or even the size of government. The point behind this seems a little ambigious. It's definitly a great "mind puzzle" though as I like to look at arguments for and against all sides and I argue against abortion and for marriage. I try to look at my own arguments and if they have weaknesses in them and where. This one I'm admittantly wrestling with the arguments within and what you are arguing for - or against.